What powers heye-kalender.de?
Last seen Aug 2026 · 17 technologies across 13 categories
Caching
WP Rocket
since Jan 2019
CMS
WordPress
since Jan 2019
Databases
MySQL
since Jan 2019
Font scripts
Font Awesome
since Jan 2019
JavaScript frameworks
Vue.js
since Mar 2026
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Performance
Priority Hints
since May 2024
Programming languages
UI frameworks
Web servers
Nginx
since Feb 2020
Webmail
Microsoft 365
since Aug 2022
WordPress plugins
Borlabs Cookie
since Dec 2021
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.06 / 10 · ranked #1,486,754 of all domains
26 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 1.2 MB · 31 requests
- WordPress theme: heye-kalenderde · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on WEBHOSTER (185.159.120.190)
- DNS: dtag.de
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 17,143,301, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Bootstrap Jul 2026
- detected Borlabs Cookie Jul 2026
- detected FancyBox Jul 2026
- detected Font Awesome Jul 2026
- detected jQuery Jul 2026
- detected jQuery Migrate Jul 2026
- detected Microsoft 365 Jul 2026
- detected MySQL Jul 2026
- detected Nginx Jul 2026
- detected Open Graph Jul 2026
- detected PHP Jul 2026
- detected Priority Hints Jul 2026
- detected RSS Jul 2026
- detected Vue.js Jul 2026
- detected WordPress Jul 2026
- detected WP Rocket Jul 2026
- detected Yoast SEO Jul 2026
- detected Vue.js Mar 2026